The Filtering of the Posturographic Signals Shows the Age Related Features
PBN-AR
Instytucja
Instytut "Centrum Zdrowia Matki Polki"
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Scientific World Journal
ISSN
1537-744X
EISSN
Wydawca
Hindawi Publishing Corporation
DOI
URL
Rok publikacji
2014
Numer zeszytu
Strony od-do
403893
Numer tomu
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
postural control
posturography
signal processing
aging
Streszczenia
Język
en
Treść
Lower frequencies of slow oscillations of the posturographic signals can be removed using high-pass filtering. This procedure releases postural reflexes possessing higher frequencies and lower amplitude range. Mutual dependence between the ?? and ?? components of posturographic signals was analyzed using principal component analysis (PCA).The posturographic signals of old patients with idiopathic gait disturbance were compared with the control roup of similar age and with younger patients. There was also the analysis of the influence of the eyes state (open versus closed) and the head position (normal or bent back). The statistically significant differences in the mutual dependence between ?? and ?? components between the groups of patients were analyzed using MANOVA. The significant differences were observed mainly in the range of filter frequencies ?? = 0.1–1.5 Hz and ?? = 2.2–5.5Hz with a maximum effect at approximately 4-5Hz. A detailed post-hoc analysis is also presented. The differences in the higher frequency range suggest the main disturbance to be connected with the spinal reflexes. Visual and vestibular support appear insufficient for postural stability control in the idiopathic gait disturbance group. The results suggest that idiopathic gait disturbance is the final stage of the aging process of postural system.
Cechy publikacji
discipline:Biocybernetyka i inżynieria biomedyczna
discipline:Biofizyka – dziedzina nauk biologicznych
discipline:Medycyna
discipline:Biocybernetics and biomedical engineering
discipline:Biophysics – field of biological sciences
discipline:Medicine
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:701029
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